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The articulation of gecko-inspired synthetic adhesives has received less attention than fiber geometry and fabrication method in the literature. In this paper, systematic variation of approach angle, shear length, and retraction angle have been performed to find the influence of articulation and suggest the ideal relationship between articulation and geometry. The results show similar adhesion and...
This paper investigates a new method for tracking parameters at which dynamic bifurcations occur in MEMS. Taking advantage of the changes in phase and amplitude which precede a critical pitchfork bifurcation, feedback control of the root mean square of the amplitude can be utilized to stabilize a device on the "edge" of instability. This can then be used as a method of tracking parameter...
Microneedle-based drug delivery has shown considerable promise for enabling painless transdermal and hypodermal delivery of conventional and novel therapies. However, this promise has yet to be fully realized due in large part to the limitations imposed by the micromechanical properties of the material systems being used. In this paper, we demonstrate titanium-based microneedle devices developed to...
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